The Japanese pop group hopped on the bitcoin bandwagon, dedicating themselves to singing and dancing about the cryptocurrencies that have taken the world by storm, and especially their homeland. (Image: Reuters)

In their debut, the eight "Virtual Currency Girls", or Kasotsuka Shojo in Japanese, cavorted in maid costumes with frilly skirts and full-face professional wrestling-style masks with fuzzy pom-pom ears, extolling the virtues of decentralized digital currencies such as bitcoin. (Image: Reuters)

Then they launched into "The Moon, Cryptocurrencies and Me", a stirring anthem incorporating lines such as "Be careful about your password! Don't use the same one!" to warn against the dangers of trading cryptocurrency. (Image: Reuters)

Japan and South Korea are home to some of the bigger digital exchanges, with investors piling in as growth in bitcoin and other cryptocurrencies soared last year, provoking regulators' concerns. (Image: Reuters)